Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4II callsign genealogy
Currently held by SPARTANBURG AMATEUR RADIO CLUB INC
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K4II's current licensee, walking backwards.
- KI4IFJcancelledSPARTANBURG AMATEUR RADIO CLUB INCSCgranted 2004-12-23cancelled 2005-01-28
Successor callsigns
Callsigns held now by people who previously held K4II.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4II, oldest first.
- BAIRD JR, WILLIAM G SC1998-06-01 → cancelled 2004-11-03
- SPARTANBURG AMATEUR RADIO CLUB INC SC2025-01-01 active